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At 46 oC a sample of ammonia gas exerts a pressure of 3.19 atm. What is the pressure when the volume of the gas is reduced to one-half of the original value at the same temperature?
The vapor pressure of water at 25 o C is 23.8 mm Hg. a. Write the balanced chemical equation. b. Calculate the mass (in grams) of zinc metal that was consumed in the reaction.
demonstrate that an excess of hydrogen peroxide was used in the oxidation step of Fe(II) to Fe(III)
Calculate the mass of silver chloride required to plate 295mg of pure silver.
A stream of oxygen was passed at a rate of 20mL per minute at S.T.P. for 1 hour through a silent electric discharge followed by a gas-washing bottle containing aqueous ammonium iodide
a solution contains the sodium salt of an anion. the followingtests are performed to identify the anion.1 the solution
A certain reaction releases 10.1 kJ at constant volume and at constant pressure releases 8.4 kJ. What is the (delta)U for the reaction?
The average osmotic pressure of seawater at 25 degree Celsius is approximately 30 atm. Assuming that seawater is a solution composed of NaCl and water with a salinity of 3.5%, calculate the molar mass of NaCl
Explain why one mole of potassium nitrate in a liter of water has a higher melting point than one mole of aluminum nitrate in a liter of
The density of a 0.438 solution of potassium chromate at 298 is 1.063 .Calculate the vapor pressure of water above the solution. The vapor pressure of pure water at this temperature is 0.0313.
A mixture contains H2 at 325torr pressure, N2 at 475torr pressure, and O2 at 650torr pressure. What is the total pressure of the gases in the system
Which of the following molecules do you think would be subject to the Pauli principle's effects on rotational levels? (Check all that apply) a. methane b. dihydrogen c. HCl d. water e. dinitrogen f. dinitrogen where one atom is isotope 14 and the ..
One of the strongest "weak" acids is chloric acid. Its Ka is 1.0. What is the pH of a 0.75M solution of HClO3
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